Hey Coach Sergio,
(Ill answer in English, just because this might help other people)
That is one of the biggest strengths of veterans, cost-effective.
The question was more like, do they have an important role to younger players or will they develop just like they would without any veterans on the team?
In the past I always had more older and experienced players on my teams, because well for starts like you said, cost-effective and they were already well rounded and could help the team from their starting day.
Now, my plan is definitely to increase the arena seats and improve younger prospects.
Btw, I definitely want to join the Portuguese whatsapp group, if you could sent me through dm I would appreciate it indeed.
Most importantly thank you for the knowledge and answer!
Marco Silva